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TM 9-2320-364-20-2
2-1873
If air lines are under high pressure when they are disconnected, they can whip around and cause injury to
personnel. Caution should be exercised when loosening or disconnecting air line fittings.
(1) Disconnect air line 2013 from
right air chamber on Axle No. 1.
(2) Connect a 0 to 160 psi (0 to 1103 kPa)
gage to air line 2013.
(3) Observe gage while assistant applies
then releases service brakes
(TM 9-2320-364-10).
(a) If there are not 125 4 psi
(861 28 kPa) present at air
line 2013, perform Step (4)
below and replace service relay
valve No. 1 (Para 12-13).
(b) If there are 125 4 psi
(861 28 kPa) present at air
line 2013, service relay valve
No. 1 is OK.
(4) Remove gage and connect air line
2013 to Axle No. 1 right air chamber.
SERVICE RELAY VALVE NO. 1 TEST
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